Yes, Medical Insurance is Important at the time of Iqama Renewal , There is no Way Anyone can Renew the Iqama Without Medical Insurance as it is now merged up with the Jawazaat System , There are Various Registered Insurance companies, each company has different insurance charges , A few reputed Companies are Tawuniya(NCCI) , ARABIA Insurance,BUPA insurance ,The insurance charges depend on one's Age, normally anyone standing between the age of 0-40 has to pay approximately 850-1000 riyals , as the age group rises , the insurance fee increases respectively,you may contact me further on khanbaba007007@gmail.com, for assistance i have links in these insurance companies.